Flashproof side wall mounted flue port



Feb. 13, 1962 c. F. DAY 3,021,051

FLASHPROOF SIDE WALL MOUNTED FLUE PORT Filed March 10, 1961 INVENTOR CHARLES F. DAY

I WH

United States Patent 3,021,051 FLASHPROOF SIDE WALL MOUNTED FLUE PORT Charles Francie Day, 262 Argyle St., Brooklyn, NY. Filed Mar. 10, 1961, Ser. No. 94,897 It) (Ilaims. (Cl. 232-44) This invention relates to a self-closing loading port for a rubbish chute, and the like, and in particular, to ports suitable for side wall flue fed incinerators.

This application is a continuation-in-part of my copending application Serial No. 28,616, filed May 12, 1960, for a Barrel Rubbish Disposal Unit.

A need exists for an improved loading port for ru-bbish disposal chutes such as are employed, for example, in conjunction with incinerator devices in multi-story buildings. It is essential to provide means for preven ing flash-back fires from the incinerator to the outside of the chute through the port. In general, in the past, there have been employed pivoted hoppers such as found in U. S. Government mail boxes. The pivoted hopper will prevent flash-back only in the fully opened and the fully closed positions. As the door of the conventional unit is opened, a plate moves upwardly to seal off the opening. As the door is closed, the plate serves as a chute and the door serves to close the opening. This prior type of receiving hopper is deficient in that in the intermediate position there is a continuous path from the loading position to the incinerator. Thus, in the event of flash-back or explosion, it is possible for the person dumping rubbish to be subjected to injury. The present construction eliminates this feature through the use of a rotating drum located inside of a fixed drum. The fixed drum is provided with matching openings, only one of which is open at a given time. At no time is there a continuous path between the flue and the outside.

One feature of this invention is the provision of a rotating drum for receiving and dumping rubbish in a chute.

Another feature of this invention is the provision of an entry for a chute whichhas a barrier between the loading side and the chute at all times.

Another feature of this invention is the provision of a rugged and durable device rubbish hopper.

Another feature of this invention is the provision of a simple, relatively inexpensive and readily serviced device.

Another feature of this invention is a device capable of handling large loads.

Still another feature is the provision of a simple means for pushing the load out of the hopper.

A particular feature is the provision of a smokeproof and fireproof hopper for the side wall of a flue-fed incinerator.

Another feature is the provision of a pusher bar.

Still another feature of this invention is the provision of a deep receiving hopper.

Still other features and advantages of the present invention will, in part, be pointed out with particularity and will, in part, become obvious as the following description proceeds taken in conjunction with the accompanying drawings wherein like numerals refer to like members.

FIG. 1 is a front elevation showing the apparatus of this invention mounted in the masonry side wall of a flue with a bezel member insulation, and a portion of the masonry shown partially broken away.

FIG. 2 is a perspective showing of a frame member forming part of the apparatus.

P16. 3 is a perspective showing of the outer drum member.

FIG. 4 is a perspective showing of the inner drum member.

FIG. 5 is a section taken along lines 55 of FIG. 1.

FIG. 6 is a perspective showing of a bezel member.

FIG. 7 is a section corresponding to FIG. 5 with the hopper inverted to the dump position.

FIG. 8 is a detail of a handle showing a latching means.

In FIG. 1, there is shown a front view of the apparatus as installed in a brick wall. The device consists of a frame, or buck member ltd, set into wall 11 and sealed in place by cement. As is more clearly shown in PEG. 2, the frame includes a pair of parallel steel U channels 12 and 13. The upper sill 14 is formed of a U channel which is welded to the side members 12 and 13. An inclined steel plate 15 is welded between members 12 and 13. Plate 15 serves as a ramp to guide rubbish into the incinerator shaft.

The apparatus includes a pair of drum members 29 and 21, shown in FIGS. 3 and 4, respectively. As will be appreciated from FIG. 5, drum 21 sits inside of drum 20. Drum 21 includes an outer cylindrical plate which covers but 270 of the drum cylinder periphery leaving a 90 gap as shown. Slightly varying the relative cylinder plate and gap ratio will not depart from the spirit of the invention. Chord members 23 and 24 form barriers which are welded into the gap to form a garbage receiving pocket 25. Steel end discs 26 and 27 are Welded to the ends of the drum. Prior. to assembly, shaft 28 is welded to plate 23 and passes through holes in end discs 26 and 27.

Assembly 20 comprises a pair of end discs 3% and 31 and a pair of arcuate plates 32 and 33, each of which cover about 90 of arc and which are spaced apart by about 90 of arc, thus providing a rubbish receiving opening and a rubbish disposal opening. The recitation of about 99 is intended to emphasize that minor variation in port opening dimension may be made without departing from the spirit of the invention. Drum assembly 21 is inserted into assembly 29 after member 39, 3?. and 33 are welded together but before member 31 is Welded in place. Approrc'mately one-eighth inch clearance is provided between the outer walls of assembly 21 and the inner Wall of assembly 2i). Assembly 20 is provided with a pair of arcuate smoke guards 34 and 35 which are welded to end plates Sil and 31, respectively. Member 31 is also provided with a radially aligned plate 36 which is used to secure the drum against flange 19 of buck member 14. Welded to member 33 and spaced between members 30 and 31, there is provided a second radially aligned plate 37, which serves as a drip edge. The insulation is made by installing the buck member in the side wall of the flue. The drum assembly 20, 21, together with counter-Weighted handle as, attached to the end of shaft 28, is then slipped into slots 41. Flange 36 is bolted to member 19 to prevent rotation of the outer drum 20.

A guard member 44 is welded to the buck iii to provide a recess for handle member 4%. lt will be noted that the knob 59 of handle assembly ill extends beyond the chamber 44 and slots are provided in housing 44 which receive the cross bar 51 of the handle. Boxlike compartments 45 are provided to receive knob and the hand of the user.

Spring loaded latching means latch the handle in position to be loaded. T he latching means are shown in the detail of FIG. 8. A pivoted latch 74 is mounted on the upper wall of housing 4-4 by means of pivot pin 71. A spring 72 is anchored at one end to the side wall of housing 44 and the other end to latch 7 A Weight 48 afllxed to cross bar 51 serves to counterbalance the load on the handle.

After the drum has been inserted into the frame, or buck, as such member is commonly termed, a layer of asbestos fibre 55 is laid around the periphery. An

aluminum or other suitable metal channel forms a bezel 56, shown in FIG. 6. The bezel 56 is mounted over the frame to complete a smokeproof seal against the masonry of the wall.

It has been found that garbage, particularly wet garbage, has a tendency to be caught between plates 23 and 24. Accordingly, a feature of this invention is the provision of a /2 steel plate mounted on a pair of studs 59, the ends of the studs being anchored into a plate 60 welded between members 23 and 24. In the loading position, the plate 58 slides down along studs 59 until it contacts plates 23, 24-. in the dump position shown in FIG. 7, the plate rides down along the studs and pushes the garbage out. This simple arrangement has been found effective even with newspapers which have a tendency to stick to the Walls of the hopper.

It will be noted that plates 58 are provided with counterbored holes to receive the heads of studs 59.

The particular construction shown has been found extremely satisfactory in service. A heretofore unappreciated feature is the stiffening action provided by the arcuate portion spanning chord-like barrier 24. Tests have shown that this portion materially protects the device against heat warpage present in a typical incinerator flue.

Drip table 37 serves to protect the apparatus when garbage cans are banged against the edge during the loading process. It serves the further function of extending the lip out so that liquid drippings will drip off to the floor rather than run down along the wall.

Quarter-inch steel plate is in general suitable for construction of the device. However, other gages may be employed as dictated by the specific conditions of use.

A principal advantage of the above described apparatus is that at no time is a continuous direct path provided between the shaft interior and the outside thus preventing any danger from explosion or flashback to a person loading rubbish. Further, it will be appreciated that a smokeproof unit is provided. Attention is directed to the lack of protruding edges which could catch garbage when the drum is rotating to the unloading position.

Having thus disclosed the best embodiment of my invention presently contemplated in accordance with the statutes, I wish it understood that various modifications and changes may be made without departing from the spirit of the invention.

What is claimed is:

l. A self-sealing port device for installation in the side wall of a line of a fine-fed incinerator comprising:

a frame for installation in said side wall;

a horizontal shaft rotatably carried by said frame;

a pair of discs mounted on said shaft and'arranged to rotate therewith;

an arcuate plate defining about three-quarters of the circumference of a first cylinder, coaxial with said shaft, said plate being mounted between said discs to provide two horizontal edges spaced apart about one-quarter the circumference of said first cylinder and defining a loading port;

a first barrier extending between one said horizontal edge of said arcuate plate and an intermediate point of said arcuate plate between said edges and a second barrier extending from the other said horizontal edge of said plate and joining said first barrier at an acute angle;

a second partial cylinder coaxially surrounding said first cylinder comprising a pair of approximately quarter round arcuate segments spaced uniformly apart and a pair of transverse end plates to define top and bottom edges of a loading port and a discharge port;

a pair of arcuate members joining said quarter round members and extending from said second cylinder over the discs of said first cylinder to define the side edges of the loading port;

a plate extending radially from said second cylinder and secured to said frame to prevent rotation of said second cylinder;

and a plate supported by said frame under said second cylinder, said plate being inclined toward said flue.

2. The apparatus of claim 1 including a weighted plate extending parallel to the axis of rotation of said cylinders and slidingly mounted in the acute angle formed by said first and second barriers and arranged to move radially with respect to said shaft, by force of gravity between the lower of the apex of said acute angle and the loading port, as the cylinder is rotated.

3. The apparatus of claim 1 including means coupled to said shaft for rotating said first cylinder.

4. The apparatus of claim 1 including means for restricting rotation of said first cylinder to 5. The apparatus of claim 1 including handle means for rotating said first cylinder between the loading port and discharge port of said second cylinder and a counterweight affixed to said handle for balancing the eccentric load of said first cylinder.

6. The apparatus of claim 5 including means to releaseably latch said handle means with the first cylinder loading port abreast said second cylinder loading port.

7. The apparatus of clairn 1 wherein the outer diameter of said first cylinder is about /8 less than the inner diameter of said second cylinder.

8. The apparatus of claim 1 including a bezel member surrounding said second cylinder and attached to said frame.

9. The apparatus of claim 8 including an asbestos gasket between said frame and said bezel.

10. A self-sealing port device for installation in the side wall of a flue comprising:

a frame for installation in said side wall;

a horizontal shaft rotatably carried by said frame;

a pair of discs mounted on said shaft and arranged to rotate therewith;

an arcuate plate defining about three-quarters of the circumference of a first cylinder, coaxial with said shaft, said plate being mounted between said discs to provide two horizontal edges spaced apart about onequarter the circumference of said first cylinder and defining a loading port;

a first barrier extending between one said horizontal edge of said arcuate plate and an intermediate point of said arcuate plate between said edges and a second barrier extending from the other said horizontal edge of said plate and joining said first barrier at an armate angle;

a second partial cylinder coaxially surrounding said first cylinder comprising a pair of approximately quarter round arcuate segments spaced uniformly apart and a pair of transverse end plates to define top and bottom edges of a loading port and a discharge port;

means to prevent rotation of said second cylinder;

and a plate supported by said frame under said second cylinder, said plate being inclined toward said flue.

References Cited in the file of this patent UNITED STATES PATENTS 1,368,870 Winstead Feb. 15, 1921 2,480,685 Adams Aug. 30, 1949 FOREIGN PATENTS 152,197 Great Britain Oct. 14, 1920 715,318 France Sept. 22, 1931 

